Introduces LegacyPromise; polyfills DOM Promise

src/core/chunked_stream.js

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 /* globals assert, MissingDataException, isInt, NetworkManager, Promise,
-           isEmptyObj */
+           isEmptyObj, LegacyPromise */
 
 'use strict';
 
@@ -258,7 +258,7 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
     this.requestsByChunk = {};
     this.callbacksByRequest = {};
 
-    this.loadedStream = new Promise();
+    this.loadedStream = new LegacyPromise();
     if (args.initialData) {
       this.setInitialData(args.initialData);
     }

src/core/core.js

@@ -15,8 +15,8 @@
  * limitations under the License.
  */
 /* globals assertWellFormed, calculateMD5, Catalog, error, info, isArray,
-           isArrayBuffer, isName, isStream, isString, Lexer,
-           Linearization, NullStream, PartialEvaluator, shadow, Stream,
+           isArrayBuffer, isName, isStream, isString, LegacyPromise,
+           Linearization, NullStream, PartialEvaluator, shadow, Stream, Lexer,
            StreamsSequenceStream, stringToPDFString, stringToBytes, Util, XRef,
            MissingDataException, Promise, Annotation, ObjectLoader, OperatorList
            */
@@ -123,7 +123,7 @@ var Page = (function PageClosure() {
         // TODO: add async inheritPageProp and remove this.
         this.resourcesPromise = this.pdfManager.ensure(this, 'resources');
       }
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       this.resourcesPromise.then(function resourceSuccess() {
         var objectLoader = new ObjectLoader(this.resources.map,
                                             keys,
@@ -136,13 +136,13 @@ var Page = (function PageClosure() {
     },
     getOperatorList: function Page_getOperatorList(handler) {
       var self = this;
-      var promise = new Promise();
+      var promise = new LegacyPromise();
 
       function reject(e) {
         promise.reject(e);
       }
 
-      var pageListPromise = new Promise();
+      var pageListPromise = new LegacyPromise();
 
       var pdfManager = this.pdfManager;
       var contentStreamPromise = pdfManager.ensure(this, 'getContentStream',
@@ -208,7 +208,7 @@ var Page = (function PageClosure() {
 
       var self = this;
 
-      var textContentPromise = new Promise();
+      var textContentPromise = new LegacyPromise();
 
       var pdfManager = this.pdfManager;
       var contentStreamPromise = pdfManager.ensure(this, 'getContentStream',

src/core/evaluator.js

@@ -19,9 +19,9 @@
            info, isArray, isCmd, isDict, isEOF, isName, isNum,
            isStream, isString, JpegStream, Lexer, Metrics, Name, Parser,
            Pattern, PDFImage, PDFJS, serifFonts, stdFontMap, symbolsFonts,
-           TilingPattern, warn, Util, Promise, UnsupportedManager,
+           TilingPattern, warn, Util, Promise, LegacyPromise,
            RefSetCache, isRef, TextRenderingMode, CMapFactory, OPS,
-           UNSUPPORTED_FEATURES */
+           UNSUPPORTED_FEATURES, UnsupportedManager */
 
 'use strict';
 
@@ -548,7 +548,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       // dictionary
       var parser = new Parser(new Lexer(stream, OP_MAP), false, xref);
 
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       var args = [];
       while (true) {
 

src/core/image.js

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 /* globals ColorSpace, error, isArray, isStream, JpegStream, Name, Promise,
-           Stream, warn */
+           Stream, warn, LegacyPromise */
 
 'use strict';
 
@@ -129,9 +129,9 @@ var PDFImage = (function PDFImageClosure() {
    */
   PDFImage.buildImage = function PDFImage_buildImage(callback, handler, xref,
                                                      res, image, inline) {
-    var imageDataPromise = new Promise();
-    var smaskPromise = new Promise();
-    var maskPromise = new Promise();
+    var imageDataPromise = new LegacyPromise();
+    var smaskPromise = new LegacyPromise();
+    var maskPromise = new LegacyPromise();
     // The image data and smask data may not be ready yet, wait till both are
     // resolved.
     Promise.all([imageDataPromise, smaskPromise, maskPromise]).then(

src/core/obj.js

@@ -19,7 +19,7 @@
            isStream, Lexer, log, Page, Parser, Promise, shadow,
            stringToPDFString, stringToUTF8String, warn, isString, assert,
            Promise, MissingDataException, XRefParseException, Stream,
-           ChunkedStream */
+           ChunkedStream, LegacyPromise */
 
 'use strict';
 
@@ -97,7 +97,7 @@ var Dict = (function DictClosure() {
         if (xref) {
           return xref.fetchIfRefAsync(value);
         }
-        promise = new Promise();
+        promise = new LegacyPromise();
         promise.resolve(value);
         return promise;
       }
@@ -106,7 +106,7 @@ var Dict = (function DictClosure() {
         if (xref) {
           return xref.fetchIfRefAsync(value);
         }
-        promise = new Promise();
+        promise = new LegacyPromise();
         promise.resolve(value);
         return promise;
       }
@@ -114,7 +114,7 @@ var Dict = (function DictClosure() {
       if (xref) {
         return xref.fetchIfRefAsync(value);
       }
-      promise = new Promise();
+      promise = new LegacyPromise();
       promise.resolve(value);
       return promise;
     },
@@ -434,7 +434,7 @@ var Catalog = (function CatalogClosure() {
     },
 
     getPageDict: function Catalog_getPageDict(pageIndex) {
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       var nodesToVisit = [this.catDict.getRaw('Pages')];
       var currentPageIndex = 0;
       var xref = this.xref;
@@ -1120,14 +1120,14 @@ var XRef = (function XRefClosure() {
     },
     fetchIfRefAsync: function XRef_fetchIfRefAsync(obj) {
       if (!isRef(obj)) {
-        var promise = new Promise();
+        var promise = new LegacyPromise();
         promise.resolve(obj);
         return promise;
       }
       return this.fetchAsync(obj);
     },
     fetchAsync: function XRef_fetchAsync(ref, suppressEncryption) {
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       var tryFetch = function (promise) {
         try {
           promise.resolve(this.fetch(ref, suppressEncryption));
@@ -1254,7 +1254,7 @@ var ObjectLoader = (function() {
 
     load: function ObjectLoader_load() {
       var keys = this.keys;
-      this.promise = new Promise();
+      this.promise = new LegacyPromise();
       // Don't walk the graph if all the data is already loaded.
       if (!(this.xref.stream instanceof ChunkedStream) ||
           this.xref.stream.getMissingChunks().length === 0) {

src/core/pdf_manager.js

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 /* globals NotImplementedException, MissingDataException, Promise, Stream,
-           PDFDocument, ChunkedStreamManager */
+           PDFDocument, ChunkedStreamManager, LegacyPromise */
 
 'use strict';
 
@@ -81,7 +81,7 @@ var LocalPdfManager = (function LocalPdfManagerClosure() {
   function LocalPdfManager(data, password) {
     var stream = new Stream(data);
     this.pdfModel = new PDFDocument(this, stream, password);
-    this.loadedStream = new Promise();
+    this.loadedStream = new LegacyPromise();
     this.loadedStream.resolve(stream);
   }
 
@@ -90,7 +90,7 @@ var LocalPdfManager = (function LocalPdfManagerClosure() {
 
   LocalPdfManager.prototype.ensure =
       function LocalPdfManager_ensure(obj, prop, args) {
-    var promise = new Promise();
+    var promise = new LegacyPromise();
     try {
       var value = obj[prop];
       var result;
@@ -109,7 +109,7 @@ var LocalPdfManager = (function LocalPdfManagerClosure() {
 
   LocalPdfManager.prototype.requestRange =
       function LocalPdfManager_requestRange(begin, end) {
-    var promise = new Promise();
+    var promise = new LegacyPromise();
     promise.resolve();
     return promise;
   };
@@ -158,7 +158,7 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
 
   NetworkPdfManager.prototype.ensure =
       function NetworkPdfManager_ensure(obj, prop, args) {
-    var promise = new Promise();
+    var promise = new LegacyPromise();
     this.ensureHelper(promise, obj, prop, args);
     return promise;
   };
@@ -189,7 +189,7 @@ var NetworkPdfManager = (function NetworkPdfManagerClosure() {
 
   NetworkPdfManager.prototype.requestRange =
       function NetworkPdfManager_requestRange(begin, end) {
-    var promise = new Promise();
+    var promise = new LegacyPromise();
     this.streamManager.requestRange(begin, end, function() {
       promise.resolve();
     });

src/core/worker.js

@@ -17,7 +17,7 @@
 /* globals error, globalScope, InvalidPDFException, log,
            MissingPDFException, PasswordException, PDFJS, Promise,
            UnknownErrorException, NetworkManager, LocalPdfManager,
-           NetworkPdfManager, XRefParseException,
+           NetworkPdfManager, XRefParseException, LegacyPromise,
            isInt, PasswordResponses, MessageHandler, Ref */
 
 'use strict';
@@ -27,7 +27,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     var pdfManager;
 
     function loadDocument(recoveryMode) {
-      var loadDocumentPromise = new Promise();
+      var loadDocumentPromise = new LegacyPromise();
 
       var parseSuccess = function parseSuccess() {
         var numPagesPromise = pdfManager.ensureModel('numPages');
@@ -71,7 +71,7 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
     }
 
     function getPdfManager(data) {
-      var pdfManagerPromise = new Promise();
+      var pdfManagerPromise = new LegacyPromise();
 
       var source = data.source;
       var disableRange = data.disableRange;
@@ -239,7 +239,8 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
             if (ex instanceof PasswordException) {
               // after password exception prepare to receive a new password
               // to repeat loading
-              pdfManager.passwordChangedPromise = new Promise();
+              pdfManager.passwordChangedPromise =
+                new LegacyPromise();
               pdfManager.passwordChangedPromise.then(pdfManagerReady);
             }
 
@@ -276,31 +277,31 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
       });
     });
 
-    handler.on('GetPageIndex', function wphSetupGetPageIndex(data, promise) {
+    handler.on('GetPageIndex', function wphSetupGetPageIndex(data, deferred) {
       var ref = new Ref(data.ref.num, data.ref.gen);
       pdfManager.pdfModel.catalog.getPageIndex(ref).then(function (pageIndex) {
-        promise.resolve(pageIndex);
-      }, promise.reject.bind(promise));
+        deferred.resolve(pageIndex);
+      }, deferred.reject);
     });
 
     handler.on('GetDestinations',
-      function wphSetupGetDestinations(data, promise) {
+      function wphSetupGetDestinations(data, deferred) {
         pdfManager.ensureCatalog('destinations').then(function(destinations) {
-          promise.resolve(destinations);
+          deferred.resolve(destinations);
         });
       }
     );
 
-    handler.on('GetData', function wphSetupGetData(data, promise) {
+    handler.on('GetData', function wphSetupGetData(data, deferred) {
       pdfManager.requestLoadedStream();
       pdfManager.onLoadedStream().then(function(stream) {
-        promise.resolve(stream.bytes);
+        deferred.resolve(stream.bytes);
       });
     });
 
-    handler.on('DataLoaded', function wphSetupDataLoaded(data, promise) {
+    handler.on('DataLoaded', function wphSetupDataLoaded(data, deferred) {
       pdfManager.onLoadedStream().then(function(stream) {
-        promise.resolve({ length: stream.bytes.byteLength });
+        deferred.resolve({ length: stream.bytes.byteLength });
       });
     });
 
@@ -365,29 +366,29 @@ var WorkerMessageHandler = PDFJS.WorkerMessageHandler = {
       });
     }, this);
 
-    handler.on('GetTextContent', function wphExtractText(data, promise) {
+    handler.on('GetTextContent', function wphExtractText(data, deferred) {
       pdfManager.getPage(data.pageIndex).then(function(page) {
         var pageNum = data.pageIndex + 1;
         var start = Date.now();
         page.extractTextContent().then(function(textContent) {
-          promise.resolve(textContent);
+          deferred.resolve(textContent);
           log('text indexing: page=%d - time=%dms', pageNum,
               Date.now() - start);
         }, function (e) {
           // Skip errored pages
-          promise.reject(e);
+          deferred.reject(e);
         });
       });
     });
 
-    handler.on('Cleanup', function wphCleanup(data, promise) {
+    handler.on('Cleanup', function wphCleanup(data, deferred) {
       pdfManager.cleanup();
-      promise.resolve(true);
+      deferred.resolve(true);
     });
 
-    handler.on('Terminate', function wphTerminate(data, promise) {
+    handler.on('Terminate', function wphTerminate(data, deferred) {
       pdfManager.terminate();
-      promise.resolve();
+      deferred.resolve();
     });
   }
 };

src/display/api.js

@@ -17,7 +17,7 @@
 /* globals CanvasGraphics, combineUrl, createScratchCanvas, error,
            FontLoader, globalScope, info, isArrayBuffer, loadJpegStream,
            MessageHandler, PDFJS, Promise, StatTimer, warn,
-           PasswordResponses, Util, loadScript,
+           PasswordResponses, Util, loadScript, LegacyPromise,
            FontFace */
 
 'use strict';
@@ -161,8 +161,8 @@ PDFJS.getDocument = function getDocument(source,
     params[key] = source[key];
   }
 
-  workerInitializedPromise = new PDFJS.Promise();
-  workerReadyPromise = new PDFJS.Promise();
+  workerInitializedPromise = new PDFJS.LegacyPromise();
+  workerReadyPromise = new PDFJS.LegacyPromise();
   transport = new WorkerTransport(workerInitializedPromise,
       workerReadyPromise, pdfDataRangeTransport, progressCallback);
   workerInitializedPromise.then(function transportInitialized() {
@@ -230,7 +230,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
      * JavaScript strings in the name tree.
      */
     getJavaScript: function PDFDocumentProxy_getJavaScript() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       var js = this.pdfInfo.javaScript;
       promise.resolve(js);
       return promise;
@@ -251,7 +251,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
      * ].
      */
     getOutline: function PDFDocumentProxy_getOutline() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       var outline = this.pdfInfo.outline;
       promise.resolve(outline);
       return promise;
@@ -263,7 +263,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
      * {Metadata} object with information from the metadata section of the PDF.
      */
     getMetadata: function PDFDocumentProxy_getMetadata() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       var info = this.pdfInfo.info;
       var metadata = this.pdfInfo.metadata;
       promise.resolve({
@@ -273,7 +273,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
       return promise;
     },
     isEncrypted: function PDFDocumentProxy_isEncrypted() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       promise.resolve(this.pdfInfo.encrypted);
       return promise;
     },
@@ -282,7 +282,7 @@ var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
      * the raw data from the PDF.
      */
     getData: function PDFDocumentProxy_getData() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.transport.getData(promise);
       return promise;
     },
@@ -363,7 +363,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
       if (this.annotationsPromise)
         return this.annotationsPromise;
 
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.annotationsPromise = promise;
       this.transport.getAnnotations(this.pageInfo.pageIndex);
       return promise;
@@ -397,7 +397,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
       // requested before. Make the request and create the promise.
       if (!this.displayReadyPromise) {
         this.receivingOperatorList = true;
-        this.displayReadyPromise = new Promise();
+        this.displayReadyPromise = new LegacyPromise();
         this.operatorList = {
           fnArray: [],
           argsArray: [],
@@ -444,9 +444,9 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
         self._tryDestroy();
 
         if (error) {
-          renderTask.reject(error);
+          renderTask.promise.reject(error);
         } else {
-          renderTask.resolve();
+          renderTask.promise.resolve();
         }
         stats.timeEnd('Rendering');
         stats.timeEnd('Overall');
@@ -459,7 +459,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
      * content from the page.
      */
     getTextContent: function PDFPageProxy_getTextContent() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.transport.messageHandler.send('GetTextContent', {
           pageIndex: this.pageNumber - 1
         },
@@ -473,7 +473,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
      * Stub for future feature.
      */
     getOperationList: function PDFPageProxy_getOperationList() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       var operationList = { // not implemented
         dependencyFontsID: null,
         operatorList: null
@@ -627,7 +627,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
 
     loadFakeWorkerFiles: function WorkerTransport_loadFakeWorkerFiles() {
       if (!PDFJS.fakeWorkerFilesLoadedPromise) {
-        PDFJS.fakeWorkerFilesLoadedPromise = new Promise();
+        PDFJS.fakeWorkerFilesLoadedPromise = new LegacyPromise();
         // In the developer build load worker_loader which in turn loads all the
         // other files and resolves the promise. In production only the
         // pdf.worker.js file is needed.
@@ -840,7 +840,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
           error(data.error);
       }, this);
 
-      messageHandler.on('JpegDecode', function(data, promise) {
+      messageHandler.on('JpegDecode', function(data, deferred) {
         var imageUrl = data[0];
         var components = data[1];
         if (components != 3 && components != 1)
@@ -869,7 +869,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
               buf[j] = data[i];
             }
           }
-          promise.resolve({ data: buf, width: width, height: height});
+          deferred.resolve({ data: buf, width: width, height: height});
         }).bind(this);
         img.src = imageUrl;
       });
@@ -894,7 +894,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
     },
 
     dataLoaded: function WorkerTransport_dataLoaded() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.messageHandler.send('DataLoaded', null, function(args) {
         promise.resolve(args);
       });
@@ -905,14 +905,14 @@ var WorkerTransport = (function WorkerTransportClosure() {
       var pageIndex = pageNumber - 1;
       if (pageIndex in this.pagePromises)
         return this.pagePromises[pageIndex];
-      var promise = new PDFJS.Promise('Page ' + pageNumber);
+      var promise = new PDFJS.LegacyPromise();
       this.pagePromises[pageIndex] = promise;
       this.messageHandler.send('GetPageRequest', { pageIndex: pageIndex });
       return promise;
     },
 
     getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.messageHandler.send('GetPageIndex', { ref: ref },
         function (pageIndex) {
           promise.resolve(pageIndex);
@@ -927,7 +927,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
     },
 
     getDestinations: function WorkerTransport_getDestinations() {
-      var promise = new PDFJS.Promise();
+      var promise = new PDFJS.LegacyPromise();
       this.messageHandler.send('GetDestinations', null,
         function transportDestinations(destinations) {
           promise.resolve(destinations);
@@ -976,7 +976,7 @@ var PDFObjects = (function PDFObjectsClosure() {
         return this.objs[objId];
 
       var obj = {
-        promise: new Promise(objId),
+        promise: new LegacyPromise(),
         data: null,
         resolved: false
       };
@@ -1057,17 +1057,13 @@ var PDFObjects = (function PDFObjectsClosure() {
   };
   return PDFObjects;
 })();
-/*
- * RenderTask is basically a promise but adds a cancel function to terminate it.
- */
+
 var RenderTask = (function RenderTaskClosure() {
   function RenderTask(internalRenderTask) {
     this.internalRenderTask = internalRenderTask;
-    Promise.call(this);
+    this.promise = new PDFJS.LegacyPromise();
   }
 
-  RenderTask.prototype = Object.create(Promise.prototype);
-
   /**
    * Cancel the rendering task. If the task is curently rendering it will not be
    * cancelled until graphics pauses with a timeout. The promise that this

src/display/canvas.js

@@ -17,7 +17,7 @@
 /* globals ColorSpace, DeviceCmykCS, DeviceGrayCS, DeviceRgbCS, error,
            FONT_IDENTITY_MATRIX, IDENTITY_MATRIX, ImageData, isArray, isNum,
            Pattern, TilingPattern, Util, warn, assert, info,
-           TextRenderingMode, OPS */
+           TextRenderingMode, OPS, Promise */
 
 'use strict';
 
@@ -508,6 +508,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       var commonObjs = this.commonObjs;
       var objs = this.objs;
       var fnId;
+      var deferred = Promise.resolve();
 
       while (true) {
         if (stepper && i === stepper.nextBreakPoint) {
@@ -549,7 +550,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
         // to continue exeution after a short delay.
         // However, this is only possible if a 'continueCallback' is passed in.
         if (continueCallback && Date.now() > endTime) {
-          setTimeout(continueCallback, 0);
+          deferred.then(continueCallback);
           return i;
         }
 

src/shared/annotation.js

@@ -16,7 +16,8 @@
  */
 /* globals Util, isDict, isName, stringToPDFString, warn, Dict, Stream,
            stringToBytes, PDFJS, isWorker, assert, NotImplementedException,
-           Promise, isArray, ObjectLoader, isValidUrl, OperatorList, OPS */
+           Promise, isArray, ObjectLoader, isValidUrl, OperatorList, OPS,
+           LegacyPromise */
 
 'use strict';
 
@@ -141,7 +142,7 @@ var Annotation = (function AnnotationClosure() {
     },
 
     loadResources: function(keys) {
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       this.appearance.dict.getAsync('Resources').then(function(resources) {
         if (!resources) {
           promise.resolve();
@@ -160,7 +161,7 @@ var Annotation = (function AnnotationClosure() {
 
     getOperatorList: function Annotation_getToOperatorList(evaluator) {
 
-      var promise = new Promise();
+      var promise = new LegacyPromise();
 
       if (!this.appearance) {
         promise.resolve(new OperatorList());
@@ -277,7 +278,7 @@ var Annotation = (function AnnotationClosure() {
       annotationsReadyPromise.reject(e);
     }
 
-    var annotationsReadyPromise = new Promise();
+    var annotationsReadyPromise = new LegacyPromise();
 
     var annotationPromises = [];
     for (var i = 0, n = annotations.length; i < n; ++i) {
@@ -439,7 +440,7 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
         return Annotation.prototype.getOperatorList.call(this, evaluator);
       }
 
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       var opList = new OperatorList();
       var data = this.data;
 
@@ -516,7 +517,7 @@ var TextAnnotation = (function TextAnnotationClosure() {
   Util.inherit(TextAnnotation, Annotation, {
 
     getOperatorList: function TextAnnotation_getOperatorList(evaluator) {
-      var promise = new Promise();
+      var promise = new LegacyPromise();
       promise.resolve(new OperatorList());
       return promise;
     },

src/shared/util.js

@@ -14,7 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL */
+/* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL,
+           Promise */
 
 'use strict';
 
@@ -810,6 +811,24 @@ function isPDFFunction(v) {
 }
 
 /**
+ * Legacy support for PDFJS Promise implementation.
+ * TODO remove eventually
+ */
+var LegacyPromise = PDFJS.LegacyPromise = (function LegacyPromiseClosure() {
+  return function LegacyPromise() {
+    var resolve, reject;
+    var promise = new Promise(function (resolve_, reject_) {
+      resolve = resolve_;
+      reject = reject_;
+    });
+    promise.resolve = resolve;
+    promise.reject = reject;
+    return promise;
+  };
+})();
+
+/**
+ * Polyfill for Promises:
  * The following promise implementation tries to generally implment the
  * Promise/A+ spec. Some notable differences from other promise libaries are:
  * - There currently isn't a seperate deferred and promise object.
@@ -818,7 +837,40 @@ function isPDFFunction(v) {
  * Based off of the work in:
  * https://bugzilla.mozilla.org/show_bug.cgi?id=810490
  */
-var Promise = PDFJS.Promise = (function PromiseClosure() {
+(function PromiseClosure() {
+  if (globalScope.Promise) {
+    // Promises existing in the DOM/Worker, checking presence of all/resolve
+    if (typeof globalScope.Promise.all !== 'function') {
+      globalScope.Promise.all = function (iterable) {
+        var count = 0, results = [], resolve, reject;
+        var promise = new globalScope.Promise(function (resolve_, reject_) {
+          resolve = resolve_;
+          reject = reject_;
+        });
+        iterable.forEach(function (p, i) {
+          count++;
+          p.then(function (result) {
+            results[i] = result;
+            count--;
+            if (count === 0) {
+              resolve(results);
+            }
+          }, reject);
+        });
+        if (count === 0) {
+          resolve(results);
+        }
+        return promise;
+      };
+    }
+    if (typeof globalScope.Promise.resolve !== 'function') {
+      globalScope.Promise.resolve = function (x) {
+        return new globalScope.Promise(function (resolve) { resolve(x); });
+      };
+    }
+    return;
+  }
+//#if !MOZCENTRAL
   var STATUS_PENDING = 0;
   var STATUS_RESOLVED = 1;
   var STATUS_REJECTED = 2;
@@ -851,6 +903,8 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
     },
 
     runHandlers: function runHandlers() {
+      var RUN_TIMEOUT = 1; // ms
+      var timeoutAt = Date.now() + RUN_TIMEOUT;
       while (this.handlers.length > 0) {
         var handler = this.handlers.shift();
 
@@ -876,6 +930,14 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
         }
 
         handler.nextPromise._updateStatus(nextStatus, nextValue);
+        if (Date.now() >= timeoutAt) {
+          break;
+        }
+      }
+
+      if (this.handlers.length > 0) {
+        setTimeout(this.runHandlers.bind(this), 0);
+        return;
       }
 
       this.running = false;
@@ -926,9 +988,10 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
     }
   };
 
-  function Promise() {
+  function Promise(resolver) {
     this._status = STATUS_PENDING;
     this._handlers = [];
+    resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
   }
   /**
    * Builds a promise that is resolved when all the passed in promises are
@@ -937,11 +1000,15 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
    * @return {Promise} New dependant promise.
    */
   Promise.all = function Promise_all(promises) {
-    var deferred = new Promise();
+    var resolveAll, rejectAll;
+    var deferred = new Promise(function (resolve, reject) {
+      resolveAll = resolve;
+      rejectAll = reject;
+    });
     var unresolved = promises.length;
     var results = [];
     if (unresolved === 0) {
-      deferred.resolve(results);
+      resolveAll(results);
       return deferred;
     }
     function reject(reason) {
@@ -949,7 +1016,7 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
         return;
       }
       results = [];
-      deferred.reject(reason);
+      rejectAll(reason);
     }
     for (var i = 0, ii = promises.length; i < ii; ++i) {
       var promise = promises[i];
@@ -961,7 +1028,7 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
           results[i] = value;
           unresolved--;
           if (unresolved === 0)
-            deferred.resolve(results);
+            resolveAll(results);
         };
       })(i);
       if (Promise.isPromise(promise)) {
@@ -980,6 +1047,14 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
   Promise.isPromise = function Promise_isPromise(value) {
     return value && typeof value.then === 'function';
   };
+  /**
+   * Creates resolved promise
+   * @param x resolve value
+   * @returns {Promise}
+   */
+  Promise.resolve = function Promise_resolve(x) {
+    return new Promise(function (resolve) { resolve(x); });
+  };
 
   Promise.prototype = {
     _status: null,
@@ -1011,24 +1086,19 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
       HandlerManager.scheduleHandlers(this);
     },
 
-    get isResolved() {
-      return this._status === STATUS_RESOLVED;
-    },
-
-    get isRejected() {
-      return this._status === STATUS_REJECTED;
-    },
-
-    resolve: function Promise_resolve(value) {
+    _resolve: function Promise_resolve(value) {
       this._updateStatus(STATUS_RESOLVED, value);
     },
 
-    reject: function Promise_reject(reason) {
+    _reject: function Promise_reject(reason) {
       this._updateStatus(STATUS_REJECTED, reason);
     },
 
     then: function Promise_then(onResolve, onReject) {
-      var nextPromise = new Promise();
+      var nextPromise = new Promise(function (resolve, reject) {
+        this.resolve = reject;
+        this.reject = reject;
+      });
       this._handlers.push({
         thisPromise: this,
         onResolve: onResolve,
@@ -1040,7 +1110,10 @@ var Promise = PDFJS.Promise = (function PromiseClosure() {
     }
   };
 
-  return Promise;
+  globalScope.Promise = Promise;
+//#else
+//throw new Error('DOM Promise is not present');
+//#endif
 })();
 
 var StatTimer = (function StatTimerClosure() {
@@ -1172,7 +1245,12 @@ function MessageHandler(name, comObj) {
     } else if (data.action in ah) {
       var action = ah[data.action];
       if (data.callbackId) {
-        var promise = new Promise();
+        var deferred = {};
+        var promise = new Promise(function (resolve, reject) {
+          deferred.resolve = resolve;
+          deferred.reject = reject;
+        });
+        deferred.promise = promise;
         promise.then(function(resolvedData) {
           comObj.postMessage({
             isReply: true,
@@ -1180,7 +1258,7 @@ function MessageHandler(name, comObj) {
             data: resolvedData
           });
         });
-        action[0].call(action[1], data.data, promise);
+        action[0].call(action[1], data.data, deferred);
       } else {
         action[0].call(action[1], data.data);
       }

test/driver.js

@@ -269,7 +269,10 @@ function nextPage(task, loadError) {
         clear(ctx);
 
         var drawContext, textLayerBuilder;
-        var initPromise = new Promise();
+        var resolveInitPromise;
+        var initPromise = new Promise(function (resolve) {
+          resolveInitPromise = resolve;
+        });
         if (task.type == 'text') {
           // using dummy canvas for pdf context drawing operations
           if (!dummyCanvas) {
@@ -281,12 +284,12 @@ function nextPage(task, loadError) {
 
           page.getTextContent().then(function(textContent) {
             textLayerBuilder.setTextContent(textContent);
-            initPromise.resolve();
+            resolveInitPromise();
           });
         } else {
           drawContext = ctx;
           textLayerBuilder = new NullTextLayerBuilder();
-          initPromise.resolve();
+          resolveInitPromise();
         }
         var renderContext = {
           canvasContext: drawContext,
@@ -300,7 +303,7 @@ function nextPage(task, loadError) {
           snapshotCurrentPage(task, error);
         });
         initPromise.then(function () {
-          page.render(renderContext).then(function() {
+          page.render(renderContext).promise.then(function() {
             completeRender(false);
           },
           function(error) {

test/unit/api_spec.js

@@ -80,10 +80,13 @@ describe('api', function() {
     });
   });
   describe('Page', function() {
-    var promise = new Promise();
+    var resolvePromise;
+    var promise = new Promise(function (resolve) {
+      resolvePromise = resolve;
+    });
     PDFJS.getDocument(basicApiUrl).then(function(doc) {
       doc.getPage(1).then(function(data) {
-        promise.resolve(data);
+        resolvePromise(data);
       });
     });
     var page;

web/firefoxcom.js

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* globals Preferences, PDFJS */
+/* globals Preferences, PDFJS, Promise */
 
 'use strict';
 
@@ -109,8 +109,9 @@ Preferences.prototype.writeToStorage = function(prefObj) {
 };
 
 Preferences.prototype.readFromStorage = function() {
-  var readFromStoragePromise = new PDFJS.Promise();
-  var readPrefs = JSON.parse(FirefoxCom.requestSync('getPreferences'));
-  readFromStoragePromise.resolve(readPrefs);
+  var readFromStoragePromise = new Promise(function (resolve) {
+    var readPrefs = JSON.parse(FirefoxCom.requestSync('getPreferences'));
+    resolve(readPrefs);
+  });
   return readFromStoragePromise;
 };

web/page_view.js

@@ -589,7 +589,7 @@ var PageView = function pageView(container, id, scale,
     };
     var renderTask = this.renderTask = this.pdfPage.render(renderContext);
 
-    this.renderTask.then(
+    this.renderTask.promise.then(
       function pdfPageRenderCallback() {
         pageViewDrawCallback(null);
       },
@@ -649,7 +649,7 @@ var PageView = function pageView(container, id, scale,
         viewport: viewport
       };
 
-      pdfPage.render(renderContext).then(function() {
+      pdfPage.render(renderContext).promise.then(function() {
         // Tell the printEngine that rendering this canvas/page has finished.
         obj.done();
         self.pdfPage.destroy();

web/pdf_find_controller.js

@@ -16,7 +16,7 @@
 
 'use strict';
 
-/* globals PDFFindBar, PDFJS, FindStates, FirefoxCom */
+/* globals PDFFindBar, PDFJS, FindStates, FirefoxCom, Promise */
 
 /**
  * Provides a "search" or "find" functionality for the PDF.
@@ -64,8 +64,6 @@ var PDFFindController = {
 
   integratedFind: false,
 
-  firstPagePromise: new PDFJS.Promise(),
-
   initialize: function(options) {
     if(typeof PDFFindBar === 'undefined' || PDFFindBar === null) {
         throw 'PDFFindController cannot be initialized ' +
@@ -82,6 +80,9 @@ var PDFFindController = {
       'findcasesensitivitychange'
     ];
 
+    this.firstPagePromise = new Promise(function (resolve) {
+      this.resolveFirstPage = resolve;
+    }.bind(this));
     this.handleEvent = this.handleEvent.bind(this);
 
     for (var i = 0; i < events.length; i++) {
@@ -139,8 +140,11 @@ var PDFFindController = {
     this.startedTextExtraction = true;
 
     this.pageContents = [];
+    var extractTextPromisesResolves = [];
     for (var i = 0, ii = this.pdfPageSource.pdfDocument.numPages; i < ii; i++) {
-      this.extractTextPromises.push(new PDFJS.Promise());
+      this.extractTextPromises.push(new Promise(function (resolve) {
+        extractTextPromisesResolves.push(resolve);
+      }));
     }
 
     var self = this;
@@ -158,7 +162,7 @@ var PDFFindController = {
           // Store the pageContent as a string.
           self.pageContents.push(str);
 
-          self.extractTextPromises[pageIndex].resolve(pageIndex);
+          extractTextPromisesResolves[pageIndex](pageIndex);
           if ((pageIndex + 1) < self.pdfPageSource.pages.length)
             extractPageText(pageIndex + 1);
         }

web/preferences.js

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* globals DEFAULT_PREFERENCES, PDFJS, isLocalStorageEnabled */
+/* globals DEFAULT_PREFERENCES, PDFJS, isLocalStorageEnabled, Promise */
 
 'use strict';
 
@@ -23,7 +23,9 @@
 var Preferences = (function PreferencesClosure() {
   function Preferences() {
     this.prefs = {};
+    this.isInitializedPromiseResolved = false;
     this.initializedPromise = this.readFromStorage().then(function(prefObj) {
+      this.isInitializedPromiseResolved = true;
       if (prefObj) {
         this.prefs = prefObj;
       }
@@ -36,19 +38,19 @@ var Preferences = (function PreferencesClosure() {
     },
 
     readFromStorage: function Preferences_readFromStorage() {
-      var readFromStoragePromise = new PDFJS.Promise();
+      var readFromStoragePromise = Promise.resolve();
       return readFromStoragePromise;
     },
 
     reset: function Preferences_reset() {
-      if (this.initializedPromise.isResolved) {
+      if (this.isInitializedPromiseResolved) {
         this.prefs = {};
         this.writeToStorage(this.prefs);
       }
     },
 
     set: function Preferences_set(name, value) {
-      if (!this.initializedPromise.isResolved) {
+      if (!this.isInitializedPromiseResolved) {
         return;
       } else if (DEFAULT_PREFERENCES[name] === undefined) {
         console.error('Preferences_set: \'' + name + '\' is undefined.');
@@ -79,7 +81,7 @@ var Preferences = (function PreferencesClosure() {
       if (defaultPref === undefined) {
         console.error('Preferences_get: \'' + name + '\' is undefined.');
         return;
-      } else if (this.initializedPromise.isResolved) {
+      } else if (this.isInitializedPromiseResolved) {
         var pref = this.prefs[name];
 
         if (pref !== undefined) {
@@ -99,10 +101,11 @@ var Preferences = (function PreferencesClosure() {
 //};
 //
 //Preferences.prototype.readFromStorage = function() {
-//  var readFromStoragePromise = new PDFJS.Promise();
-//  asyncStorage.getItem('preferences', function(prefString) {
-//    var readPrefs = JSON.parse(prefString);
-//    readFromStoragePromise.resolve(readPrefs);
+//  var readFromStoragePromise = new Promise(function (resolve) {
+//    asyncStorage.getItem('preferences', function(prefString) {
+//      var readPrefs = JSON.parse(prefString);
+//      resolve(readPrefs);
+//    });
 //  });
 //  return readFromStoragePromise;
 //};
@@ -116,11 +119,12 @@ Preferences.prototype.writeToStorage = function(prefObj) {
 };
 
 Preferences.prototype.readFromStorage = function() {
-  var readFromStoragePromise = new PDFJS.Promise();
-  if (isLocalStorageEnabled) {
-    var readPrefs = JSON.parse(localStorage.getItem('preferences'));
-    readFromStoragePromise.resolve(readPrefs);
-  }
+  var readFromStoragePromise = new Promise(function (resolve) {
+    if (isLocalStorageEnabled) {
+      var readPrefs = JSON.parse(localStorage.getItem('preferences'));
+      resolve(readPrefs);
+    }
+  });
   return readFromStoragePromise;
 };
 //#endif

web/thumbnail_view.js

@@ -161,7 +161,7 @@ var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
         cont();
       }
     };
-    this.pdfPage.render(renderContext).then(
+    this.pdfPage.render(renderContext).promise.then(
       function pdfPageRenderCallback() {
         self.renderingState = RenderingStates.FINISHED;
         callback();

web/view_history.js

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* globals PDFJS, VIEW_HISTORY_MEMORY, isLocalStorageEnabled */
+/* globals PDFJS, VIEW_HISTORY_MEMORY, isLocalStorageEnabled, Promise */
 
 'use strict';
 
@@ -31,11 +31,16 @@
 var ViewHistory = (function ViewHistoryClosure() {
   function ViewHistory(fingerprint) {
     this.fingerprint = fingerprint;
-    this.initializedPromise = new PDFJS.Promise();
+    var initializedPromiseResolve;
+    this.isInitializedPromiseResolved = false;
+    this.initializedPromise = new Promise(function (resolve) {
+      initializedPromiseResolve = resolve;
+    });
 
     var resolvePromise = (function ViewHistoryResolvePromise(db) {
+      this.isInitializedPromiseResolved = true;
       this.initialize(db || '{}');
-      this.initializedPromise.resolve();
+      initializedPromiseResolve();
     }).bind(this);
 
 //#if B2G
@@ -78,7 +83,7 @@ var ViewHistory = (function ViewHistoryClosure() {
     },
 
     set: function ViewHistory_set(name, val) {
-      if (!this.initializedPromise.isResolved) {
+      if (!this.isInitializedPromiseResolved) {
         return;
       }
       var file = this.file;
@@ -101,7 +106,7 @@ var ViewHistory = (function ViewHistoryClosure() {
     },
 
     get: function ViewHistory_get(name, defaultValue) {
-      if (!this.initializedPromise.isResolved) {
+      if (!this.isInitializedPromiseResolved) {
         return defaultValue;
       }
       return this.file[name] || defaultValue;

web/viewer.js

@@ -19,7 +19,7 @@
            getFileName, scrollIntoView, getPDFFileNameFromURL, PDFHistory,
            Preferences, ViewHistory, PageView, ThumbnailView,
            noContextMenuHandler, SecondaryToolbar, PasswordPrompt,
-           PresentationMode, HandTool */
+           PresentationMode, HandTool, Promise */
 
 'use strict';
 
@@ -787,12 +787,17 @@ var PDFView = {
 
   load: function pdfViewLoad(pdfDocument, scale) {
     var self = this;
-    var onePageRendered = new PDFJS.Promise();
+    var isOnePageRenderedResolved = false;
+    var resolveOnePageRendered = null;
+    var onePageRendered = new Promise(function (resolve) {
+      resolveOnePageRendered = resolve;
+    });
     function bindOnAfterDraw(pageView, thumbnailView) {
       // when page is painted, using the image as thumbnail base
       pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
-        if (!onePageRendered.isResolved) {
-          onePageRendered.resolve();
+        if (!isOnePageRenderedResolved) {
+          isOnePageRenderedResolved = true;
+          resolveOnePageRendered();
         }
         thumbnailView.setImage(pageView.canvas);
       };
@@ -841,7 +846,11 @@ var PDFView = {
     var pagesRefMap = this.pagesRefMap = {};
     var thumbnails = this.thumbnails = [];
 
-    var pagesPromise = this.pagesPromise = new PDFJS.Promise();
+    var resolvePagesPromise;
+    var pagesPromise = new Promise(function (resolve) {
+      resolvePagesPromise = resolve;
+    });
+    this.pagesPromise = pagesPromise;
 
     var firstPagePromise = pdfDocument.getPage(1);
 
@@ -877,13 +886,13 @@ var PDFView = {
               pagesRefMap[refStr] = pageNum;
               getPagesLeft--;
               if (!getPagesLeft) {
-                pagesPromise.resolve();
+                resolvePagesPromise();
               }
             }.bind(null, pageNum));
           }
         } else {
           // XXX: Printing is semi-broken with auto fetch disabled.
-          pagesPromise.resolve();
+          resolvePagesPromise();
         }
       });
 
@@ -893,12 +902,12 @@ var PDFView = {
 
       PDFView.loadingBar.setWidth(container);
 
-      PDFFindController.firstPagePromise.resolve();
+      PDFFindController.resolveFirstPage();
     });
 
     var prefsPromise = prefs.initializedPromise;
     var storePromise = store.initializedPromise;
-    PDFJS.Promise.all([firstPagePromise, prefsPromise, storePromise]).
+    Promise.all([firstPagePromise, prefsPromise, storePromise]).
         then(function() {
       var showPreviousViewOnLoad = prefs.get('showPreviousViewOnLoad');
       var defaultZoomValue = prefs.get('defaultZoomValue');
@@ -961,7 +970,7 @@ var PDFView = {
     // outline depends on destinations and pagesRefMap
     var promises = [pagesPromise, destinationsPromise,
                     PDFView.animationStartedPromise];
-    PDFJS.Promise.all(promises).then(function() {
+    Promise.all(promises).then(function() {
       pdfDocument.getOutline().then(function(outline) {
         self.outline = new DocumentOutlineView(outline);
         document.getElementById('viewOutline').disabled = !outline;
@@ -2212,9 +2221,10 @@ window.addEventListener('afterprint', function afterPrint(evt) {
                               window.oRequestAnimationFrame ||
                               window.msRequestAnimationFrame ||
                               function startAtOnce(callback) { callback(); };
-  PDFView.animationStartedPromise = new PDFJS.Promise();
-  requestAnimationFrame(function onAnimationFrame() {
-    PDFView.animationStartedPromise.resolve();
+  PDFView.animationStartedPromise = new Promise(function (resolve) {
+    requestAnimationFrame(function onAnimationFrame() {
+      resolve();
+    });
   });
 })();